The E-MAGIC project team, made up of leading centres and universities in Europe and Israel in the development of new battery systems, has just published the article “A practical perspective on the potential of rechargeable Mg batteries”. The research shows for the first time a pre-industrial battery prototype with a practical capacity close to 500 mAh and high reversibility (> 200 charge/discharge cycles), demonstrating the viability of this technology. In addition, a roadmap is established for the development and implementation of new materials that enable a significant improvement in the system's performance, particularly its energy density. The analysis of the impact of the most promising materials developed within the project at the laboratory cell level, enables an energy density of more than 160 Wh kg-1 to be predicted, comparable to conventional lithium ion batteries.